My niece is short tempered. She is misbehaving with everyone in her home and relatives when someone ask her anything she behaves rudely but she well behaved with her friends. She don't know why she is angry so much. When I asked her you behaved rudely to me then she said no I didn't say anything. She told me that she don't like anything. Her mood is swinging in every few minutes. Her mother is in depression and her mother's treatment is running. We are worried about that she is suffering from any mental problem.